Sleep Duration Calculator
Find hours of sleep between bedtime and wake time.
Examples
- Bed 22, wake 6 ⇒ 8 hours
- Bed 23, wake 7 ⇒ 8 hours
FAQ
What format are the times?
Enter hours on a 24-hour clock from 0 to 23.
Does it handle overnight sleep?
Yes, the formula wraps past midnight automatically.
Can I enter decimals for minutes?
Use decimals to represent partial hours, like 7.5 for 7:30.
Additional Information
- A full day's cycle is 24 hours.
- Quality of sleep depends on more than just duration.